The above p-v diagram represents the thermodynamic cycle of an engine, operating with an ideal mono-atomic gas. The amount of heat, extracted from the source in a single cycle is :
A
(132)p0V0
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B
p0V0
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C
4p0V0
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D
(112)p0V0
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Solution
The correct option is A(132)p0V0 Heat is extracted from the source, means heat is given to the system (or gas) or Q is positive. This is positive only along the path ABC.